username and password box to enter part of site??

hi only little me again with a question..... i would like to put a user name and password box on my website so only customers who i send the details to can access that certain part of the site.... i appreciate this may be beyond me but i have created a form for their details in frontpage and copied it into a webpage in dreamweaver and now i get emailed the results of the form as well as taking them to a thank you page..... what i am trying to get at is i am not a complete novice when it comes to these things.

and i would imagine that to create it is much like.... if they dont put the right details in the boxes the link wont work!!!

forgive me for being confusing but i hope you get what i mean... i have just bought a book on dreamweaver that tells me how to make the actual password box but not how to put it to use.......... my host supports fp extensions so i would like to use that if i can......... any help would be much appreciated..

There is an implication here on the "Data Protections Act 1990". Do you have any type of Data Protection Policy running? It's reletively easy to set one up. Also you would need to be a regitered data handler which costs around £35.